When you get so engrossed in something that time flies, for example, i go back to scrolling on the phone. The psychologist who coined that term, he himself referred to that as a junk flow. If you're feeling kind of hollow, vacant, empty and dead, then you probably were in junk flow. Then ask yourself, why? Now, why in this particular moment did you pick up your phone to do that thing? Did you actually have a time sensitive reason, or did you have an emotional reason? And that's the most common. There's probably an emotional driver. You felt bored for a moment and you wanted a distraction. Or maybe you feel lonely and want that